If imitation is the sincerest form of flattery, then this new interactive sign from IBM really, truly wants to get on your good side. It changes its appearance based on what you're wearing.

The sign is part of IBM's Smarter Planet initiative, an broad effort to make worldwide systems more efficient through the use of technology. This billboard, using sensors and LEDs to dynamically update its color, urges viewers to consider how technology could improve supply chain systems and retail experiences today.

As seen in the video, the sign works pretty well, matching colors accurately and updating quickly. It's susceptible to crash, however, when faced with processing clashing outfits. [Fubiz]